In this post we’ll be covering a couple of topics from the Inside Out of the link-state protocols that have always been ambiguous and full of details, we’ll try to make them as crystal clear as we can. MTU: Both link-state routing protocols consider MTU in order to prevent any …
Read More »Bury the hatchet
The endless story of OSPF vs IS-IS – Part 3 “Packets and Database”
In this post we are going to cover the protocol packets and database structure for both routing protocols. To start let’s first highlight a couple of facts. OSPF runs on top of IP, that is it uses IP packets to exchange its messages (and thus it is vulnerable to spoofing …
Read More »The endless story of OSPF vs IS-IS – Part 2 “The history”
In our previous post we started consolidating the endless story of OSPF vs IS-IS, in this post we will cover the historical part of the story, it might not be interesting for some people, but I do believe that the history is what makes the future, so please bare with …
Read More »The endless story of OSPF vs IS-IS
Whenever you have a little IGP chit chat you’ll hit this endless story. I’ve tried to reach a final solid conclusion my self but IMHO its all about personal preference and taste. It is something like a Ferrari vs Lamborghini story, they offer comparable performance, but totally different feeling. It …
Read More »MTU and ping size confusion
I am very glade to return back after pausing posting for a while. Actually we were very busy the last few months evaluating, designing and preparing for our company’s backbone migration, a little C Vs J with all its fun 😉 Anyway, while going through the low level design we …
Read More »VRF Selection Based on Source IP Addresses
In this post we are going to cover a nice tool, actually I’ve never used it in production, but I was fully testing it during my CCIE SP lab preparations and wish to share it with you. It’s nice to have such a tool in your tool box when dealing …
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